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| 型号： | LT3494EDDB#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.18A 8DFN |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.23 V ~ 38 V |
| 输入电压： | 2.3 V ~ 16 V |
| PWM 型： | 混合物 |
| 电流 - 输出： | 180mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-DFN（3x2） |
| 产品目录页面： | 1331 (CN2011-ZH PDF) |
| 其它名称： | LT3494EDDB#TRMPBFDKR |
LT3494/LT3494A
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cation s are at T A = 25°C. V CC = 3V, V SHDN = V CC , unless otherwise noted. (Note 2)
PARAMETER
CTRL Pin Bias Current
CTRL to FB Offset
Maximum Shunt Current
CONDITIONS
V CTRL = 0.5V, Current Flows Out of Pin
V CTRL = 0.5V
V FB = 1.3V, V CAP = 5V
●
MIN
TYP
20
8
230
MAX
100
15
UNITS
nA
mV
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3494/LT3494A are guaranteed to meet performance
speci?cations from 0°C to 85°C. Speci?cations over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: Internal reference voltage is determined by ?nding V FB voltage
level which causes quiescent current to increase 20μA above “Not
Switching” level.
Note 4: If CTRL is overriding the internal reference, Start-Up mode occurs
when V FB is less then half the voltage on CTRL. If CTRL is not overriding
the internal reference, Start-Up mode occurs when V FB is less then half the
voltage of the internal reference.
Note 5: Current limit guaranteed by design and/or correlation to static test.
TYPICAL PERFORMANCE CHARACTERISTICS
Switching Frequency
T A = 25°C unless otherwise noted.
vs Load Currrent
1400
LT3494
FIGURE 5 CIRCUIT
1200 V CC = 3.6V
V OUT = 16V
1000
Load Regulation
2.0
LT3494
1.5 FIGURE 5 CIRCUIT
V CC = 3.6V
1.0 V OUT = 16V
V OUT vs CTRL Voltage
20
LT3494
FIGURE 5 CIRCUIT
V CC = 3.6V
15 V OUT = 16V
LOAD CURRENT = 1mA
0.5
800
600
0
–0.5
10
400
200
–1.0
–1.5
5
0
0.1
1 10
100
–2.0
0
5
10
15
20
25
30
35
40
0
0.1
0.3
0.5 0.7 0.9
1.1
1.3
1.5
LOAD CURRENT (mA)
3494 G01
LOAD CURRENT (mA)
3494 G02
CTRL VOLTAGE (V)
3494 G03
3494fb
3
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| LT3495BEDDB#TRMPBF | 功能描述:IC REG BOOST ADJ 0.65A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
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